A268515 - OEIS

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A268515 as a simple table

n	a(n)
1	1
2	3
3	5
4	8
5	14
6	15
7	534
8	7451
9	12737
10	22466
11	68346
12	148017
13	217441
14	320408
15	533679
16	4156269
17	4886972
18	10253793
19	13761184
20	14358891
21	35950987
22	68665026
23	455880544
24	10065016098

[1,3,5,8,14,15,534,7451,12737,22466,68346,148017, 217441,320408,533679,4156269,4886972,10253793, 13761184,14358891,35950987,68665026,455880544, 10065016098]